I developed Template:Vandal before we had reliably-visiting administrators first to aid volunteers in combating vandalism. Later the same template served to aid in monitoring who was blocked, for how long, for what reason, and to report vandals to the administrators.

I was the first to edit the sidebar to promote important projects such as wiki-wide styling (which I suspect wasn't altogether effective, I admit) and also to link articles that appeal to most wiki visitors and contributors. I also set up a way that non-admins could suggest pages to link, but that wasn't a very successful effort.